Ha! A few gb ram and a few tb disk is real cheap in the cloud.
If your dataset fits in ram, and when it doesn't you have to buy more boxes with more ram rather than just buying more disk, then I think you are making a very uneconomical trade off.
If your dataset fits in ram, and when it doesn't you have to buy more boxes with more ram rather than just buying more disk, then I think you are making a very uneconomical trade off.
> If your dataset fits in ram, and when it doesn't you have to buy more boxes with more ram rather than just buying more disk, then I think you are making a very uneconomical trade off.
It is all in what lower latency is worth to the bottom line and how well you scale horizontally.
(Src: have run each, and stuff like shard-query to parallelise queries and scale them out)